Electromagnetic waves perform an increasingly important function in our everyday lives. We have always relied upon the visible light part of the electromagnetic spectrum to look at what is in [...]

Television and radio services Television and radio services are broadcast in various ways. Among them are wireless broadcasts from terrestrial transmitters and satellites in geostationary orbit. Building developments can interfere [...]

Recently a 70 mile wide swarm of butterflies was detected by meteorological radar in Colorado USA. There are many natural and man-made sources of radar interference and a number of [...]

Overview India’s civil aviation authority, the Directorate General of Civil Aviation (DGCA), has ordered a reduction in height of 70 buildings within 60 days. This is due, at least in [...]